Issue in getting list of AudioFeatures for multiple trackIds

[rakeshparveen5]

When I try to get the audioFeature for single trackId , it works fine.
This code returns correct result and works fine:
var trackFeatures = await spotifyApi.audioFeatures.get("Single 1 spotify id");

But if I try to get list of audioFeatures for multiple trackIds I am getting exception using below code:
List ids = ["track id 1 from Spotify", "track id 2 from Spotify" ];
var trackFeatures = await spotifyApi.audioFeatures.list(ids);

This is the stacktrace :

The error is here in audio_features.dart

 Future<Iterable<AudioFeature>> list(Iterable<String> trackIds) async {
    var jsonString = await _api._get('$_path?ids=${trackIds.join(',')}');
    var map = json.decode(jsonString);

var artistsMap = map['audio-features'] as Iterable<dynamic>;     ----< map is null >---
return artistsMap.map((m) => AudioFeature.fromJson(m));

}

[rakeshparveen5]

@rinukkusu As I checked the Spotify Api to get audioFeatures for multiple tracksIds, I found that the response returned by this api

"https://api.spotify.com/v1/audio-features?ids=6tLEIITb7OlqJ5rdAN77xq%2C4e3ZhgKuJz0xBmLbT6j9Pd%2C2c6a5RlXAB4Ab8Tm06n4eZ"

returns json with different key

{
"audio_features": [
{
"danceability": 0.591,
"energy": 0.922,

In the library's audio_features.dart , this function

Future<Iterable> list(Iterable trackIds)

having this line

var artistsMap = map['audio-features'] as Iterable<dynamic>;    

So, If we update the key as per api response , its working as expected and providing the correct result.

'audio-features' should be 'audio_features',

--

[rinukkusu]

Hi @rakeshparveen5 - thanks for finding this bug - care to create a PR?

[rakeshparveen5]

ok. @rinukkusu I will create a PR 👍

[rinukkusu]

Your fix is published in 0.3.1+1 - thanks for helping out! 😃